Grqueue is a simple goroutine synchronous queue.It can make the mutiple tasks what cost too many time and execute synchronously in your program run at different goroutines.
go get github.com/yaodd/grqueue
Import in your package and use it.Let's look a simple example.
package main
import (
"fmt"
"github.com/yaodd/grqueue"
"time"
)
func main() {
t1 := time.Now()
queue := grqueue.NewGoroutineQueue(6, 20)
for i := 0; i < 20; i++ {
index := i
task := func() interface{} {
return delay(1, index)
}
queue.AddTask(task)
}
queue.SetTaskEndCallback(tfCallback)
queue.SetFinishCallback(endCallback)
queue.Start()
diff := time.Now().Sub(t1)
fmt.Println("cost:", diff)
}
func delay(sec uint, index int) int {
time.Sleep(time.Duration(sec) * time.Second)
return index
}
func tfCallback(result interface{}) {
index := result.(int)
fmt.Printf("filished task index:%d\n", index)
}
func endCallback() {
fmt.Println("all tasks finished")
}
After you execute go run it will be display:
$ go run
filished task index:2
filished task index:3
filished task index:0
filished task index:4
filished task index:5
filished task index:1
filished task index:11
filished task index:9
filished task index:10
filished task index:7
filished task index:6
filished task index:8
filished task index:17
filished task index:14
filished task index:13
filished task index:12
filished task index:16
filished task index:15
filished task index:19
filished task index:18
all tasks finished
cost: 4.007254648s
That's all.